The Cephalonia, Greece, January 26 (M6.1) and February 3, 2014 (M6.0) earthquakes: near-fault ground motion and effects on soil and structures

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• 作者：N. Theodoulidis ; Ch. Karakostas ; V. Lekidis ; K. Makra…
• 关键词：Cephalonia ; Near ; fault ; Strong motion ; Earthquake damage ; Lessons learnt
• 刊名：Bulletin of Earthquake Engineering
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：14
• 期：1
• 页码：1-38
• 全文大小：7,819 KB
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• 作者单位：N. Theodoulidis (1)
  Ch. Karakostas (1)
  V. Lekidis (1)
  K. Makra (1)
  B. Margaris (1)
  K. Morfidis (1)
  Ch. Papaioannou (1)
  Emm. Rovithis (1)
  T. Salonikios (1)
  A. Savvaidis (1)
  
  1. Institute of Engineering Seismology and Earthquake Engineering, ITSAK, Thessalon铆ki, Greece
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Geotechnical Engineering
  Civil Engineering
  Geophysics and Geodesy
  Hydrogeology
  Structural Geology
  
• 出版者：Springer Netherlands
• ISSN：1573-1456

文摘

The M6.1 and M6.0 Cephalonia (Greece) earthquakes on 26 January and 3 February 2014, were right lateral strike-slip events. Both shocks occurred on the Cephalonia Transform Fault zone. Strong ground motion was recorded in the near-fault at the permanent and temporary accelerograph network of ITSAK, with the highest to date acquired peak ground acceleration in Greece (PGA = 0.77 g at Chavriata-CHV1 station). Local site effects in combination with source effects, have strongly affected near-fault ground motion. Landslides, rock sliding effects, behavior of stone masonry retaining walls, road embankments, road network failures, ports and liquefaction are also investigated and presented. Seismic response of different type of structures at the stricken area is presented and comparison of the near-fault recorded ground motion with seismic code provisions in Greece is attempted. Although, near-fault seismic excitation imposed to Cephalonia buildings was much higher than the design values foreseen by the old and recent codes, corresponding damage was much lower than one could expect. The over-strength of structures together with a long established good construction practice on the island of Cephalonia could explain their favourable response to high seismic actions, overwhelming those of seismic code provisions. However, buildings constructed according to the 1959 Greek Seismic Code or earlier, should be investigated in more detail and if high vulnerability is detected, it is necessary to strengthen them according to modern seismic code provisions. Keywords Cephalonia Near-fault Strong motion Earthquake damage Lessons learnt